Finish admin dashboard and update sql code

mysql-code/Init-Data.sql

@@ -67,40 +67,42 @@ VALUES
     (1, TRUE, TRUE),
     (2, TRUE, FALSE);
 
+-- Insert Categories
 -- Insert Categories
 INSERT INTO
-    Category (CategoryID, Name)
+    Category (Name)
 VALUES
-    (1, 'Textbooks'),
-    (2, 'Electronics'),
-    (3, 'Furniture'),
-    (4, 'Clothing'),
-    (5, 'Sports Equipment'),
-    (6, 'Musical Instruments'),
-    (7, 'Art Supplies'),
-    (8, 'Kitchen Appliances'),
-    (9, 'Gaming'),
-    (10, 'Bicycles'),
-    (11, 'Computer Accessories'),
-    (12, 'Stationery'),
-    (13, 'Fitness Equipment'),
-    (14, 'Winter Sports'),
-    (15, 'Lab Equipment'),
-    (16, 'Camping Gear'),
-    (17, 'School Supplies'),
-    (18, 'Office Furniture'),
-    (19, 'Books (Non-textbook)'),
-    (20, 'Math & Science Resources'),
-    (21, 'Engineering Tools'),
-    (22, 'Backpacks & Bags'),
-    (23, 'Audio Equipment'),
-    (24, 'Dorm Essentials'),
-    (25, 'Smartphones & Tablets'),
-    (26, 'Winter Clothing'),
-    (27, 'Photography Equipment'),
-    (28, 'Event Tickets'),
-    (29, 'Software Licenses'),
-    (30, 'Transportation (Car Pool)');
+    ('Textbooks'),
+    ('Electronics'),
+    ('Furniture'),
+    ('Clothing'),
+    ('Sports Equipment'),
+    ('Musical Instruments'),
+    ('Art Supplies'),
+    ('Kitchen Appliances'),
+    ('Gaming'),
+    ( 'Bicycles'),
+    ( 'Computer Accessories'),
+    ( 'Stationery'),
+    ( 'Fitness Equipment'),
+    ( 'Winter Sports'),
+    ( 'Lab Equipment'),
+    ( 'Camping Gear'),
+    ( 'School Supplies'),
+    ( 'Office Furniture'),
+    ( 'Books (-textbook)'),
+    ( 'Math & Science Resources'),
+    ( 'Engineering Tools'),
+    ( 'Backpacks & Bags'),
+    ( 'Audio Equipment'),
+    ( 'Dorm Essentials'),
+    ( 'Smartphones & Tablets'),
+    ( 'Winter Clothing'),
+    ( 'Photography Equipment'),
+    ( 'Event Tickets'),
+    ( 'Software Licenses'),
+    ( 'Transportation (Car Pool)');
+
 
 -- Insert Products
 INSERT INTO

mysql-code/Schema.sql

@@ -24,7 +24,7 @@ CREATE TABLE UserRole (
 
 -- Category Entity (must be created before Product or else error)
 CREATE TABLE Category (
-    CategoryID INT PRIMARY KEY,
+    CategoryID INT AUTO_INCREMENT PRIMARY KEY,
     Name VARCHAR(255) NOT NULL
 );
 
@@ -38,15 +38,15 @@ CREATE TABLE Product (
     Description TEXT,
     CategoryID INT NOT NULL,
     Date DATETIME DEFAULT CURRENT_TIMESTAMP,
-    FOREIGN KEY (UserID) REFERENCES User (UserID),
-    FOREIGN KEY (CategoryID) REFERENCES Category (CategoryID)
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE SET NULL,
+    FOREIGN KEY (CategoryID) REFERENCES Category (CategoryID) ON DELETE SET NULL
 );
 
 -- Fixed Image_URL table
 CREATE TABLE Image_URL (
     URL VARCHAR(255),
     ProductID INT,
-    FOREIGN KEY (ProductID) REFERENCES Product (ProductID)
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE
 );
 
 -- Fixed Review Entity (Many-to-One with User, Many-to-One with Product)
@@ -60,8 +60,8 @@ CREATE TABLE Review (
         AND Rating <= 5
     ),
     Date DATETIME DEFAULT CURRENT_TIMESTAMP,
-    FOREIGN KEY (UserID) REFERENCES User (UserID),
-    FOREIGN KEY (ProductID) REFERENCES Product (ProductID)
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE SET NULL,
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE
 );
 
 -- Transaction Entity (Many-to-One with User, Many-to-One with Product)
@@ -71,8 +71,8 @@ CREATE TABLE Transaction (
     ProductID INT,
     Date DATETIME DEFAULT CURRENT_TIMESTAMP,
     PaymentStatus VARCHAR(50),
-    FOREIGN KEY (UserID) REFERENCES User (UserID),
-    FOREIGN KEY (ProductID) REFERENCES Product (ProductID)
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE CASCADE,
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE SET NULL 
 );
 
 -- Recommendation Entity (Many-to-One with User, Many-to-One with Product)
@@ -81,8 +81,8 @@ CREATE TABLE Recommendation (
     UserID INT,
     RecommendedProductID INT,
     Date DATETIME DEFAULT CURRENT_TIMESTAMP,
-    FOREIGN KEY (UserID) REFERENCES User (UserID),
-    FOREIGN KEY (RecommendedProductID) REFERENCES Product (ProductID)
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE CASCADE,
+    FOREIGN KEY (RecommendedProductID) REFERENCES Product (ProductID) ON DELETE CASCADE
 );
 
 -- History Entity (Many-to-One with User, Many-to-One with Product)
@@ -91,8 +91,8 @@ CREATE TABLE History (
     UserID INT,
     ProductID INT,
     Date DATETIME DEFAULT CURRENT_TIMESTAMP,
-    FOREIGN KEY (UserID) REFERENCES User (UserID),
-    FOREIGN KEY (ProductID) REFERENCES Product (ProductID)
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE CASCADE,
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE
 );
 
 -- Favorites Entity (Many-to-One with User, Many-to-One with Product)
@@ -100,8 +100,8 @@ CREATE TABLE Favorites (
     FavoriteID INT AUTO_INCREMENT PRIMARY KEY,
     UserID INT,
     ProductID INT,
-    FOREIGN KEY (UserID) REFERENCES User (UserID),
-    FOREIGN KEY (ProductID) REFERENCES Product (ProductID),
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE CASCADE,
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE,
     UNIQUE (UserID, ProductID)
 );
 
@@ -110,8 +110,8 @@ CREATE TABLE Product_Category (
     ProductID INT,
     CategoryID INT,
     PRIMARY KEY (ProductID, CategoryID),
-    FOREIGN KEY (ProductID) REFERENCES Product (ProductID),
-    FOREIGN KEY (CategoryID) REFERENCES Category (CategoryID)
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE,
+    FOREIGN KEY (CategoryID) REFERENCES Category (CategoryID) ON DELETE CASCADE
 );
 
 -- Login Authentication table